0187-893X 0187-893X S0187-893X2018000100011 10.22201/fq.18708404e.2018.1.63721 USA 00 00 2018 00 00 2018 29 1 126 130

2005 7 85-102 2013 90 1626-163 2005 7 31-48 2013 24 1 1 63-70 2013 15 171-84 2005 11 127-45 2012 14 69-81 2013 183